Thermo Fisher Scientific Alpha pH 1000 - Manual (Page 8)

3
3 ELECTRICAL CONNECTIONS
3.1 Connection Diagram
ENSURE electrical mains is disconnected before proceeding.
Signal Output Hold Input Alarm Relay B Relay A Power Mains
pH
mA
-
+
PE/S
PE AC: N L
1 2 5 4 3 6 7 8 9 10 11 12 13 14 15 17 15 16
* ) indicated contact positions are for currentless conditions
Pt 100 Potential Matching Pin (PMP) Signal Input pH/ORP
S/
V
PE/S
pH
18 19 20 21 22
S/ S/
BNC